Explanation:

- Option 1: Gold

- Olympic gold medals are not made entirely of gold. If they were, they would be extremely costly and heavy.

- Option 2: Silver

- Olympic gold medals are primarily made of silver. They contain about 6 grams of gold plating.

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- Option 3: Copper

- Copper is not a major component of gold medals. It is more commonly used in bronze medals as a part of their composition.

- Option 4: Bronze

- Bronze medals are not created from gold medals. They are a separate category, typically made from a mix of copper and tin.

So, the major component of the Olympic gold medals is indeed silver.